body{
    width: 100%;
    height: 150px;
}
.show_logo{
    float:left;
    display: inline-block;
}
.head_top{
    height: 10%;
    width: 100%;
    background-color: gray;
}
.tool{
    float: right;
    list-style: none;
    display: inline-block;
    width: 120px;
    height: 60px;
    padding: 40px 20px;
    text-align: center;
}
.icon{
    font-size: 40px;
    font-weight: 100;
    color: #FFFFFF;
}
